CA2412869A1 - Constituent part for fuel cell - Google Patents

Constituent part for fuel cell Download PDF

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Publication number
CA2412869A1
CA2412869A1 CA002412869A CA2412869A CA2412869A1 CA 2412869 A1 CA2412869 A1 CA 2412869A1 CA 002412869 A CA002412869 A CA 002412869A CA 2412869 A CA2412869 A CA 2412869A CA 2412869 A1 CA2412869 A1 CA 2412869A1
Authority
CA
Canada
Prior art keywords
gas diffusion
diffusion layer
gasket
fuel battery
constituting part
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002412869A
Other languages
French (fr)
Other versions
CA2412869C (en
Inventor
Yuichi Kuroki
Yoshihiro Kurano
Tomohiro Inoue
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nok Corp
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2412869A1 publication Critical patent/CA2412869A1/en
Application granted granted Critical
Publication of CA2412869C publication Critical patent/CA2412869C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/02—Details
    • H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
    • H01M8/023—Porous and characterised by the material
    • H01M8/0234—Carbonaceous material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/02—Details
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/02—Details
    • H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
    • H01M8/0204—Non-porous and characterised by the material
    • H01M8/0213—Gas-impermeable carbon-containing materials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/02—Details
    • H01M8/0271—Sealing or supporting means around electrodes, matrices or membranes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/02—Details
    • H01M8/0271—Sealing or supporting means around electrodes, matrices or membranes
    • H01M8/0273—Sealing or supporting means around electrodes, matrices or membranes with sealing or supporting means in the form of a frame
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/02—Details
    • H01M8/0271—Sealing or supporting means around electrodes, matrices or membranes
    • H01M8/0276—Sealing means characterised by their form
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/02—Details
    • H01M8/0271—Sealing or supporting means around electrodes, matrices or membranes
    • H01M8/028—Sealing means characterised by their material
    • H01M8/0284—Organic resins; Organic polymers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/02—Details
    • H01M8/0271—Sealing or supporting means around electrodes, matrices or membranes
    • H01M8/0286—Processes for forming seals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/10—Fuel cells with solid electrolytes
    • H01M2008/1095—Fuel cells with polymeric electrolytes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/10—Fuel cells with solid electrolytes
    • H01M8/1004—Fuel cells with solid electrolytes characterised by membrane-electrode assemblies [MEA]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Fuel Cell (AREA)
  • Inert Electrodes (AREA)

Abstract

In order to provide a constituting part for a fuel battery in which a number of steps of assembling the constituting parts for the fuel battery can be reduced, and in which a replacing property and a maintenance property of fuel battery cell parts can be improved and a cost for parts can be reduced, the structure is made such that a separator made of a carbon plate or the like, a gas diffusion layer made of a carbon fiber or the like, and a gasket made of a liquid rubber cured material or the like are integrally formed, and further, gaskets are respectively provided on both surfaces of a pair of gas diffusion layers holding an independent electrolyte membrane from both sides thereof between the pair.

Claims (15)

1. A constituting part for a fuel battery characterized in that a separator (2) made of a carbon plate or the like, a gas diffusion layer (3) made of a carbon fiber or the like, and a gasket (4) made of a liquid rubber cured material or the like are integrally formed.
2. A constituting part for a fuel battery characterized in that there is provided an integrated product of a separator (2) made of a carbon plate or the like and a gas diffusion layer (3) made of a carbon fiber or the like, and a gasket (4) made of a liquid rubber cured material or the like is integrally formed on one surface in the side of the gas diffusion layer (3) of the integrated product.
3. A constituting part for a fuel battery characterized in that there is provided an integrated product of a separator (2) made of a carbon plate or the like and a gas diffusion layer (3) made of a carbon fiber or the like, a gasket (4) made of a liquid rubber cured material or the like is integrally formed on one surface in the side of the gas diffusion layer (3) of the integral product, and a gasket (7) is also integrally formed on the opposite side surface.
4. A constituting part for a fuel battery as claimed in claim 1, 2 or 3, characterized in that an adhesive agent (5) is applied to the separator (2), and a rubber of the gasket (4) permeating into the gas diffusion layer (3) is reacted with the adhesive agent (5) on the separator (2), thereby being integrally formed in such a manner as to hold the gas diffusion layer (3) therein.
5. A constituting part for a fuel battery as claimed in claim 1, 2 or 3, characterized in that an adhesive agent (5) is applied to one surface of the separator (2), a rubber of the gasket (4) permeating into the gas diffusion layer (3) is reacted with the adhesive agent (5) on the separator (2), thereby being integrally formed in such a manner as to hold the gas diffusion layer (3) therein, and an adhesive agent (8) is also applied to the opposite side surface, whereby the gasket (7) is integrally formed.
6. A constituting part for a fuel battery as claimed in claim 1, 2 or 3, characterized in that a through hole (2b) is provided in the separator (2), and a part of a rubber penetrating into the gas diffusion layer (3) passes through the through hole (2b) so as to reach the opposite side surface, whereby the gaskets (4,7) are integrally formed on both surfaces of the separator (2).
7. A constituting part for a fuel battery characterized in that gaskets (19, 20, 21, 22) are provided on both surfaces of a pair of gas diffusion layers (15, 16) holding an independent electrolyte membrane (12) from both sides thereof between the pair.
8. A constituting part for a fuel battery as claimed in claim 7, characterized in that the gaskets (19, 21, 22) have a double lip structure in the side of the separator (17) in one gas diffusion layer (15), and in the side of the electrolyte membrane (12) and the side of the separator (18) in another gas diffusion layer (16), and the gasket (20) has a flat seal structure in the side of the electrolyte membrane (12) in one gas diffusion layer (15).
9. A constituting part for a fuel battery as claimed in claim 7 or 8, characterized in that each of the gaskets (19, 20, 21, 22) is structured such that a porous structure of the gas diffusion layers (15, 16) is impregnated with a liquid rubber.
10. A constituting part for a fuel battery characterized in that through holes (23, 24) are provided near peripheral edge portions of a pair of gas diffusion layers (15, 16) holding an independent electrolyte membrane (12) from both sides thereof between the pair, and gaskets (19, 20, 21, 22) are integrally formed on both surfaces of the gas diffusion layers (15, 16) via the through holes (23, 24).
11. A constituting part for a fuel battery as claimed in claim 10, characterized in that the gaskets (19, 20, 21, 22) cover the peripheral edge portions of the gas diffusion layers (15, 16), and particularly cover end surfaces (15a, 16a) of said gas diffusion layers (15, 16).
12. A constituting part for a fuel battery characterized in that the constituting part is an integrated product of a gas diffusion layer (42) made of a carbon fiber or the like and a gasket (43) made of a liquid rubber cured material or the like, and the gas diffusion layer (42) and seal lips (43a, 43b) of the gasket (43) are arranged so as not to be overlapped with each other in view of a plane.
13. A constituting part for a fuel battery as claimed in claim 12, characterized in that a rubber in a part of the gasket (43) is impregnated into the gas diffusion layer (42) in a bonding portion between the gas diffusion layer (42) and the gasket (43).
14. A constituting part for a fuel battery as claimed in claim 12 or 13, characterized in that the gasket (43) is a gasket for double-face seal or a gasket for one-face seal.
15. A constituting part for a fuel battery as claimed in claim 12, 13 or 14, characterized in that a separator (44) made of a carbon plate or the like is further integrally formed with the gas diffusion layer (42) and the gasket (43).
CA2412869A 2000-06-29 2001-05-22 Constituent part for fuel cell Expired - Fee Related CA2412869C (en)

Applications Claiming Priority (9)

Application Number Priority Date Filing Date Title
JP2000-195535 2000-06-29
JP2000195535 2000-06-29
JP2000-307152 2000-10-06
JP2000307152 2000-10-06
JP2000328136 2000-10-27
JP2000-328136 2000-10-27
JP2001-026295 2001-02-02
JP2001026295 2001-02-02
PCT/JP2001/004273 WO2002001658A1 (en) 2000-06-29 2001-05-22 Constituent part for fuel cell

Publications (2)

Publication Number Publication Date
CA2412869A1 true CA2412869A1 (en) 2002-12-12
CA2412869C CA2412869C (en) 2010-10-05

Family

ID=27481393

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2412869A Expired - Fee Related CA2412869C (en) 2000-06-29 2001-05-22 Constituent part for fuel cell

Country Status (9)

Country Link
US (1) US7504173B2 (en)
EP (1) EP1296394B1 (en)
JP (1) JP3894314B2 (en)
KR (1) KR100750021B1 (en)
CN (1) CN100487966C (en)
AT (1) ATE521099T1 (en)
AU (1) AU2001258800A1 (en)
CA (1) CA2412869C (en)
WO (1) WO2002001658A1 (en)

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US8105725B2 (en) 2006-07-12 2012-01-31 Carl Freudenberg Kg Module for a fuel cell arrangement
US9178226B2 (en) 2009-06-19 2015-11-03 Nok Corporation Fuel cell sealing structure

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US8105725B2 (en) 2006-07-12 2012-01-31 Carl Freudenberg Kg Module for a fuel cell arrangement
US9178226B2 (en) 2009-06-19 2015-11-03 Nok Corporation Fuel cell sealing structure

Also Published As

Publication number Publication date
AU2001258800A1 (en) 2002-01-08
EP1296394A1 (en) 2003-03-26
US7504173B2 (en) 2009-03-17
JP3894314B2 (en) 2007-03-22
KR100750021B1 (en) 2007-08-16
US20030104262A1 (en) 2003-06-05
EP1296394B1 (en) 2011-08-17
EP1296394A4 (en) 2009-04-29
CN100487966C (en) 2009-05-13
WO2002001658A1 (en) 2002-01-03
KR20030011876A (en) 2003-02-11
ATE521099T1 (en) 2011-09-15
CN1557034A (en) 2004-12-22
CA2412869C (en) 2010-10-05

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